extractTexture: Extract a texture file from a glTF object

In dmurdoch/rgl2gltf: Read and Write '.gltf' and '.glb' Files

Extract a texture file from a glTF object

Description

Extracts a texture from a glTF object, and writes it to a file.

Usage

extractTexture(gltf, index = 0,
               outfile = tempfile(),
               verbose = TRUE)

Arguments

gltf	The glTF object.
index	The texture number (starting from 0).
outfile	The filename to write to. If outfile has no file extension, one will be added based on the MIME type of the texture.
verbose	Whether to report on success.

Details

Since rgl doesn't support any texture format except PNG, this function will attempt to convert JPEG textures to PNG. To do that it needs to have the jpeg and png packages available.

Value

Returns the filename that was written, or NULL if the request failed.

If closeConnections = FALSE, the filename will have attribute "gltf" containing the gltf object which might now contain a new open connection.

If the texture has a recorded MIME type in gltf, that will be returned in attribute "mimeType".

dmurdoch/rgl2gltf documentation built on Nov. 19, 2024, 9:41 p.m.